ASUS PRIME B550M-K MICRO ATX

The ASUS Prime series is expertly engineered to unleash the full potential of the 3rd Gen AMD® Ryzen™ platform. Featuring a robust power design, comprehensive cooling solutions, and intelligent tuning options, the Prime B550 series motherboards provide everyday users and DIY PC builders with a wealth of tuning options through intuitive software and firmware features.

TUNE IT YOUR WAY
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard provides flexible tools for fine-tuning every aspect of your system, allowing you to fine-tune performance settings to perfectly match the way you work – maximizing productivity.

EXTREME COOLING
The B550 Series is designed with multiple built-in heatsinks and a hybrid fan header array to ensure your system stays cool and stable under intense loads.

VRM MODULE HEATSHIFT AND THERMAL PADS
A massive VRM heatsink with thermal pads underneath improves heat transfer from the MOSFETs and inductors for improved cooling performance.

BUILD A ROBUST FOUNDATION
Prime B550 motherboards provide all the essentials to amplify everyday productivity, so your system is ready for action with stable power, intuitive cooling, and flexible transfer options.

FAST SPEEDS WITH ONBOARD M.2
A PCIe 4.0 M.2 slot supports up to type 22110 and provides RAID support for NVMe SSDs for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage devices to enjoy blazing fast data transfer speeds with the 3rd Gen AMD® Ryzen™ platform.

LITTLE THINGS MAKE A BIG DIFFERENCE
The Prime B550 Series adds details that enhance every experience, from exclusive CODECs that deliver pristine audio quality to RGB lighting controls that let you customize your system to create a uniquely personal look.

• Specifications:
  • Processor: AMD AM4 Socket – Ready for Ryzen™ 5000 Series / 4000 G-Series / 3000 Series Desktop Processors
  • Chipset:  AMD B550
  • RAM Memory:
    • 4 x DIMM, Max. 128GB, DDR4 2933/2800/2666/2400/2133 MHz Un-buffered
    • 4866(OC) at 2133MHz Un-buffered Memory
    • Dual Channel Memory Architecture
    • ECC memory support (ECC mode) varies by CPU.
  • Graphics:
    • 1 x D-Sub 
    • 1 x DVI-D 
    • 1 x HDMI 2.1(4K@60HZ)
  • Expansion slots:
    • 3rd Gen AMD Ryzen™ Processors 
    • 1 x PCIe 4.0 x16 (x16 mode) 
    • AMD B550 Chipset 
    • 1 x PCIe 3.0 x16 (x4 mode) (RGB Optional)
    • 1 x PCIe 3.0 x1 
  • Storage:
    • 2 x M.2 slots and 4 x SATA 6Gb/s 
    • 3rd Gen AMD Ryzen™ : 
    • 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)
    • AMD B550 Chipset : 
    • 1 x M.2 Socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support
    • 4 x SATA 6Gb/s 
    • Supports Raid 0, 1, 10
  • LAN:  Realtek RTL8111H 1Gb Ethernet
  • Audio:  Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC
    • Supports: Jack detection, multi-streaming, front panel jack retasking, up to 24-bit/192 kHz playback
    • Resources
      • LED illuminated design
      • Audio Shielding
      • Dedicated Audio PCB Layers
      • Premium Japanese audio capacitors
  • USB Ports:
    • Rear (Total 6) 
    • 2 x USB 3.2 Gen 2 port(s)(2 x Type-A) 
    • 4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
    • Frontals (Total 6) 
    • 2 x USB 3.2 Gen 1 port(s)(2 x Type-A) 
    • 4 x USB 2.0 port(s)(4 x Type-A)
  • Rear Panel I/O Ports:
    • 1 x PS/2 keyboard/mouse combo port(s)
    • 1 x DVI-D
    • 1 x D-Sub
    • 1 x LAN port(s) (RJ45)
    • 1 x HDMI
    • 2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
    • 4 x USB 3.2 Gen 1 (blue) Type-A
    • 3 x Audio jack(s)
  • Internal I/O Connectors
    • 2 x USB 2.0 Connector(s) support(s) 4 more USB 2.0 port(s)
    • 4 x SATA 6Gb/s connector(s)
    • 1 x CPU OPT Fan connector(s)
    • 1 x CPU Fan Connector(s)
    • 2 x Chassis Fan Connector(s)
    • 1 x S/PDIF output header(s)
    • 1 x 24-pin EATX connector(s)
    • 1 x Front panel audio connector(s) (AAFP)
    • 2 x Aura RGB Strip Headers
    • 1 x Addressable Gen 2 header(s)
    • 1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s)
    • 1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)
    • 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    • 1 x SPI TPM header
    • 1 x 8-pin EATX 12V Power connectors
    • 1 x Clear CMOS jumper(s)
    • 1 x System panel connector
    • 1 x COM port header
    • 1 x Speaker connector
  • Dimensions: Micro-ATX, 24.4cm x 24.4cm